1.Yellow to brown resin 2.Content: 22,000,000IU/g min. to 28,000, ... method) 3.Water content: 0.5% max Description Vitamin D3 Resin is obtained from UV irradiation and thermal isomerization of 7 ... -dehydrocholesterol. Content of cholecalciferol can be from 22,000,000IU/g to 28,000,000IU ... contents of opened packages as soon as possible. Vitamin D3 Resin